diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index df20502..de8436d 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -31,7 +31,11 @@ project boost/coroutine2/test
 rule configure-impl ( properties * )
 {
     local result  ;
-    if ( ! ( <target-os>windows in $(properties) ) )
+    if ( <target-os>darwin in $(properties) )
+    {
+        result = <build>no ;
+    }
+    else if ( ! ( <target-os>windows in $(properties) ) )
     {
         result = <context-impl>ucontext ;
     }